[Bug libstdc++/22388] When cross-compiling libstdc++ for mingw, enable large file support (LFS)

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
  GCC build triplet|i686-pc-linux-gnu           |
   GCC host triplet|i686-pc-linux-gnu           |non-native


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22388